SB2017030725 - NULL pointer dereference in OpenBSD
Published: March 7, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017030725
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2016-6350)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a sysctl call with a path starting with 10,9.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/kern/vfs_subr.c.diff?r1=1.248&r2=1.249
- http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/tmpfs/tmpfs_vfsops.c.diff?r1=1.9&r2=1.10
- http://www.openwall.com/lists/oss-security/2016/07/26/6
- http://www.openwall.com/lists/oss-security/2016/07/26/8
- http://www.securityfocus.com/bid/92140